EP 0498059 A3 19930414 - PROCESS FOR THE PREPARATION OF A THERMOPLASTIC PROCESSABLE POLYAMIDE
Title (en)
PROCESS FOR THE PREPARATION OF A THERMOPLASTIC PROCESSABLE POLYAMIDE
Publication
Application
Priority
DE 4103210 A 19910202
Abstract (en)
[origin: US5194576A] Aromatic polyamides with an improved stability toward thermal oxidation was achieved by polycondensation being performed in the presence of 0.05 to 4 mol % of a catalyst comprising a mixture of phosphorus compounds and metal salts. With the process according to the invention, it is possible to obtain aromatic polyamides stable toward thermal oxidation.
IPC 1-7
IPC 8 full level
C08G 69/28 (2006.01); C08G 69/32 (2006.01)
CPC (source: EP US)
C08G 69/28 (2013.01 - EP US); C08G 69/32 (2013.01 - EP US)
Citation (search report)
- [AD] EP 0327700 A1 19890816 - HUELS CHEMISCHE WERKE AG [DE]
- [AP] EP 0424640 A1 19910502 - HUELS CHEMISCHE WERKE AG [DE]
Designated contracting state (EPC)
AT BE DE FR GB IT NL
DOCDB simple family (publication)
EP 0498059 A2 19920812; EP 0498059 A3 19930414; DE 4103210 A1 19920806; JP H0543683 A 19930223; US 5194576 A 19930316
DOCDB simple family (application)
EP 91120890 A 19911205; DE 4103210 A 19910202; JP 1639692 A 19920131; US 82861992 A 19920131